Home / 42,688.06-64,024.86-15,664.84

Finding the Fourth Proportional to 42,688.06, 64,024.86 and 15,664.84

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Solution

The fourth proportional to 42,688.06, 64,024.86 and 15,664.84 is: 23,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,688.06 : 64,024.86 = 15,664.84 : x
  2. Step 2: Convert to fraction form
    42,688.06/64,024.86 = 15,664.84/x
  3. Step 3: Cross multiply
    42,688.06x = 64,024.86 × 15,664.84
  4. Step 4: Simplify right side
    42,688.06x = 1,002,938,867.80
  5. Step 5: Solve for x
    x = 1,002,938,867.80/42,688.06
  6. Step 6: Final answer
    x = 23,494.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.